APIs pour la recherche et les impuretés

Applications Member of the novel hydroxyaminopentane amide class of HIV-1 protease inhibitors. Antiviral. It is a COVID19-related research product. References Vacca, J.P., et al.: Proc. Nat. Acad. Sci. USA, 91, 4096 (1994), Dorsey, B. D., et al.: J. Med. Chem., 37, 3443 (195), Balani, S.K., et al.: Drug Metab. Dispos., 23, 266 (1995)

N-[[Cis-4-(1-methylethyl)cyclohexyl]carbonyl]-D-phenylalanine (nateglinide impurity) is a postprandial blood glucose lowering agent that belongs to the class of glp-1 analogues. It has been shown to have long term efficacy and be safe for use in patients with bowel disease. Nateglinide is an ATP-sensitive K+ channel opener, which increases the amount of K+ permeability through the cell membrane and lowers the intracellular level of ATP. This leads to increased insulin release from beta cells in response to hyperglycaemia, which reduces blood glucose levels. Thermodynamic data for this compound have not been determined due to its low solubility in water. Nateglinide is an oral hypoglycemic agent that belongs to a class of glycoside derivatives. It causes a decrease in postprandial blood sugar levels by

Pantoprazole sulfone N-oxide is a prodrug that is converted to the active form pantoprazole in the stomach where it inhibits gastric acid secretion. Pantoprazole sulfone N-oxide has been shown to be genotoxic, and can cause polyvinyl chloride to degrade when stored together. Reconstituted solution of this drug should be used within 24 hours after reconstitution, as the chemical stability of this drug decreases rapidly. Validation studies have been conducted on different analytical methods for determining pantoprazole concentrations in reconstituted solutions, and these methods have been harmonized with those published by the United States Pharmacopeia (USP). The pump inhibitor activity of pantoprazole sulfone N-oxide has been demonstrated in dogs, and it is also useful for treating acid reflux disease in humans. Pantoprazole sulfone N-oxide is unstable at high temperatures (>25°C), so should not be refrigerated or

4-Biphenylcarboxylic acid is a natural metabolite of the drug bibenzonium, an antipsychotic agent. It can also be obtained by synthesis from 4-biphenylacetic acid. 4'-[(1,7'-Dimethyl-2'-propyl-1H,1'H-2,5'-bibenzo[d]imidazol-1'-yl)methyl]biphenyl-2-carboxylic acid can be used as a research and development standard for HPLC. This compound has been shown to inhibit CYP3A4 and CYP2D6 liver enzymes and may impair the metabolism of other drugs.

Remdesivir related compound 7 is a drug product that is being synthesized for use in research and development. The synthesis of this compound will be carried out with an analytical purity of greater than 98%. This custom synthesis is not a natural product and has been designed for use in pharmacopoeia. Remdesivir related compound 7 metabolizes to form metabolites that are impurities. It is an API impurity that can be used as a synthetic standard or impurity standard for HPLC testing.

Pioglitazone Pyridine-6-[4-[2-[5-ethyl-6-[4-[2-(5-ethyl-2-pyridinyl)ethoxy]phenyl]propionamido]-1,3,4-thiadiazol-2(3H)-ylidene]aminocarbonyl]-1,3,4-thiadiazole is a drug that belongs to the group of thiazolidinediones. It is an oral hypoglycemic agent that lowers blood sugar by stimulating insulin release from the pancreas and increasing peripheral tissue sensitivity to insulin. Pioglitazone Pyridine-6-[4-[2-[5-ethyl-6-[4-[2-(5-ethyl-2 pyridinyl)ethoxy]phenyl]propionamido]-1,3,4-thiadiazol 2(3H)-ylidene]aminocarbonyl]-

Applications Isotope labelled Norethindrone (N676000), a labelled progesterone in combination with acetate used as an oral contraceptive (1,2). It is reasonably anticipated to be a human carcinogen. Drinking water contaminant candidate list 3 (CCL 3) compound as per United States Environmental Protection Agency (EPA), environmental, and food contaminants. References 1. Shroff, A. et al.: Anal. Profiles Drug Subst. 1975 ; 4;268-2932. Singh, H. et al.: Am. J .Obstet. Gynecol. 1979 Oct 1;135(3):409-14